Calculating-machine



N0. 6|7,094. Patented Ian. 3, I899.

' H. GOLDMAN.

CALCULATING MACHINE.

(Application filed Jam. 25,1897.

(No Model.) 2 Sheets-Shea! l.

a 93w Kg. 1.

I; J 0 I I9 Patented mp3, I899.

No. 6l7,094.

H. GOLDMAN.

CALCULATING MACHINE.

4 (Application filed Jan. 25, 1897.)

2 Sheets-Sheet 2.

(No Model.)

UNITED STATES OFFICE.

HENRY GOLDMAN,OF CHICAGO, ILLINOIS.

cA cuLAi'me- AcHlN srncrncarron' forming m of Letters 2mm; memoe, dated ritiu 3,1899. .kmliostlon flled mamas. 1997. than in. exam. 'Ckdnodel.)

Toall whomit may concerm Be it known that I, HENRY GOLDMAN, a citizen of the United States, residing at'Chicago, in the county of Cook and State of 'Illinois,

have invented certain new and 'useful'In'i-f provements in Calculating-Machines, which" are fully' set forth, in .the" follcwing 'sp'ecidcation, reference beinghad, to'rthe accompanyand endelevation of a movable pointer. Fig.

-;ing drawings,

whichism below such covering. Fig. 2shows-a side moved to exposefithemechanisin hidden by said-removed parts; Fig, 3 showsa transverse section of Fig. 1 on a. plane 3.3. Fig. 4 showsa plan, side, and end elevation of a movable shield or shutter. Fig. 5 shows a plan, side,

' 6 shows a tableor carrier in plan view with a series of spring-stops'to the endless chains of the machine. Fig. 7 shows' a chain-link of one of a series of chains used in side elevation and under side in plan view. Fig. 8 shews'a stylus to be used with the machine.

Fig. 9 shows a fragment of the side of the case with crank and stops on the shaft of the registering-wheels. Fig.10 shows in end view.

a digit-wheel and its inner construction from the crank end of its shaft. Fig. 11 shows the same device as that shown in Fig. 10 on its reversed side with its mechanism. Fig. 12

shows the drum orregistering-wheel shaft g with two digit-wheels in central longitudinal section on the plane 12 12 of Fig. 10. Fig. 13 shows a cam forming part of the elements between any two drums used to operatively calculating-machine of more simple construe connect a series of such registering-wheels.

Like letters refer to like parts. The object of my invention is to produce a tion, convenient operation, and greater range of capacity within a price far more acceptable" than it has heretofore been possible to pro-v duce such a device. To attain said desirable ends, I construct my said calculating-machine in substantially the following way, namely:

I make a case with thick sides a, a bottom; back, and wheel-cover a, held to. said sides, and a front forming a part thereof, and in end a, forming an acute angle,

with the bottom, -?siibstantiallyzasshown. The

rear end'of the-case. is enlargedto hold specialmechanism and for; other required cone central hinge+1ng.-c"?at -.one end and a pair-of "lateral hingedugs c at'itsopposite end to re-- ceive'said central'lug, connected by a pin, as

. .55 veniences: Near eachl'end "of the case, are) shafts bl carrying a series of; pentagonal roll-:: 7, I ersbfi'ofiwhicheach oppositepa'iifis' connect/eds.

"As M l s e ofwthe lateral lugs extends across each'link; Onthe top of each link is a transverse ."ledge or ,wall a,

of which the top 'is'lieveled dewnwar'd' to- Y ward the body. of the link, so'fasto enable the teethof "the wheels f to pass over and to de- I .press-ijt'moreeasily. The-upper partpf the said endlessgchain is carried on a platform,

plate, or carrier d, of which oneen'd is divided into as many separate fingers ad as there are chains c". Said platform is held. bylugs d in the sides a of the case at the base of the fingers and at its other end by aledge or wall d formed by turning the end of said carrier at right angles to its. plane, with its ends. extending into-the walls, as do the lugs d. The ends of said firigers are bent upward into obtuse projections d, which enter the grooves c of the chain-links and form stops to the chain. Said fingers become springs when in place to form a check to the motion of the chain at a. fixed point and at the same time lift the chain into secure contact with the digit-wheels f, but so as to yield to a force slightlyv greater than. would be. required to actuate the chain. Vertically over said stop d is a shaft e, provided with opposite grooves e.'and journal-bearings in the sides a and a crank e at one end with stops e e to it. On said shaft are mounted a series of toothed wheels or drums f, each having ten teeth with larger faces ff, containing-each one of the ten numerical Arabic digits in successive order. Each of said drums is chambered be tween its hub and rim'from both ends and is to pass the hub of a lesser. wheel, likeformed and like turning, with teeth of like, number andform within one 'of said chambers, and.

or crescent-shaped spring h, withja-spurih, at right angles to the planeof the spring, Lprojectin g into the chamber of the next wheel to the end a of the case lution will have caught and connected all the parts 7 and i, and thus made all the numbers on the wheels register alike, which is so arranged that it will be zero. As the fulcrum is in the wheel f the parts will move withthe cam in its forward motion; but when the shaft is revolved in the opposite direction the radial or short faces of the teeth of the wheel f are held by the pawls J while the cam t moves.' The lesser wheels are shown on sleeves on the shaft e, their hubs passing through the larger wheels. The revolution of the shaft 9 is limited by the crank and stud 6 as shown in the 'full andbroken lines in Fig. 9. The short stud e passes under the crank-lever e by springing it up slightly, and so with the stud e locks the crank to its place. As no claim of novelty is made on said drums by themselves or the said described mechanism which operates said drums no further descriptionis required, as said parts are old.

A dog J, actuated by a spring J, rests its end against the radial face of one of the teeth f of each drum, and a bar J extending over the foot ends of-all the springs J. holds them Thick washers k separate the dogs J and hold them to their place on the same shaft J. A part of the casing for the drums f has a horizontal top provided with a table t Z, held by a clamp l, for writing and holding figures before the eye, necessary in the performance of certain calculations. In front of said, tablet is a face 'm at an angle of about forty-five degrees with a register-opening, within which are exposed one setof faces f, showing their digits or numbers, and below said facem is a vertical face 72,- with a slot n, resting on the top edge of the sides a. The top edges of the sides a are provided with-digit-scales 00, extending from the face 91 to the top cover-stop 0 ,whereof one is white and provided with the ten digits, beginning from the edge of said coverstop with zero and ending with nine, each numeral being between two lines opposite the lines which form the upper and lower end of each chain-link. The opposite digit-scale is of 'a somewhat similar constructiombut of black or other distinguishing color, and its numbers run in a contrary direction, forming the arithmetical complements to those of said opposite digit-scale.

' On the face a is secured a tablet I, held in place by clamps Z. Said tablet is used as a scale; for which it is ruled into unit-columns to correspond with the digit-wheels, and so the column of figures of an account-book and the like.

In the sides aare channels 1), with conical holes p,'spaced the length of a chain-link.-

serves to keep the machine in alinement'with The ends of a stop 12 are connected to barsv p, which move in the said grooves or channels, and they are provided with points p,

which.enter the holes p, through which said stop is held in place, but which may be moved by applying sufficient force to cause the bars 19 to springoutward and release said spurs from said conical holes. The washers (1 separate the pentagonal drums b? and the 1 endless chains 0 on them from each other and-allow freedom of motion.

Near the upper edge of the face m is a slot 7', with enlarged end openings 0', and in saidslot is an adjustable shutter orscrcen r, consisting of a plate '2', with a member r at right angles thereto, which playsin the slot'r and on its top is a button or holder m, which rests on the surfaces of the sides of the s 0t 1', and thus holds the shutter in place. "With said shutter'any particular number may shut out or any two separated by placing" it between them. The enlarged ends 0* of the slot 7' allow the blade 'r to be turned parallel to the slot out of the way or to remov e and replace it.

In the slot 11' are connected points rs es, of which the pointers points to the numerals on the digit-wheels f and the other poi ter s to the corresponding-chain. A conneciing part 3 holds the rear part 3 which is parallel to s. The space between the legs 8 s is filled by the lower part of the face 11. Said pointers point oif figures at the register and at the same time indicate the chains on either side of the decimal point. The construction and relative adjustment of the digit-wheels and chains are such that the chains may move in either direction with great freedom. The ledges which cross the chainlinks have in-.

clined tops, so that the chains may pass n'ore freely under the digit-wheels, the said chain; ledges thus serving both to operate the digitwheelsand to hold the pencil or stylus ends is s or other instrument used to operate the chains.

To operate the machine, put the operating instrument, as shown in Fig. 8, on that chain and opposite the numeral of either digitscale 0 or 0 which corresponds to the giver. nuniherand'its notational place and between the ledges of the chain-link and move the chain toward the front of the machine until the stylus is stopped by the covcr stop o.

times. stylus. A

In adding columns of figures the machine is most conveniently placed at the top of the column of figures, as of. a day-book, ledger,

Otherwise use the point s? of. said &c.,.with its-pointed end toward the opera-' digit-scale and the subtrehend according to the complemental digit-scale after one unit of.

' the lowest order has been deducted from it.

The result thus obtained represents the difference between the given amounts increased by ten, one hundred, one thousand, to. The figure 51, which always appears in the high est place, is shut out by the stop 7'. The true remainder will be the figures shown open in the register made by the digit-wheels. Multiplication being nothing more than the repeated addition of the multiplicand and division the repeated subtraction of the divisor, operations readily performed on this machine, the machine may therefore be used for 'these as well as all other arithmetical problems.

- \Vhat I claim-is- 1. The combination with a series of operatively connected and toothed registeringwheels, of endless chains, on rollers, tangent to said wheels and mechanism on said chains for engaging the teeth of said wheels to operate the same, substanti lly as specified.

2. The combination with a seriesof operatively-connected and toothed registeringwheels, an adjustable shutter to cover registered figures and an a just-able pointer to point off the figures of said registering-wheels,

of tangentially-moving mechanism to said wheels with-means on said mechanism to ac tuate the wheels, substantially as specified.

3. The combination with a series of operatively-connected and toothed registeringwheels and pawls thereto, of endless chains with means on said chains to engage and ac tuate said wheels, substantially as specified.

4. The combination with a series of operatively-connected and toothed registerin wheels and pawls thereto, of endless chains with means thereon to engage and actuate said wheels and an adjustable shutter tor the register to said wheels, substantially as specified.

5. The combination with a series of operatively-connected and toothed registeringtively-connected wheels and pawls thereto, of endless chains with means thereon to engage and actuate said wheels and an adjustable pointer to the register and to the actuating-chains of said wheels, substantially as specified.

6,. The combination witha series of opera-- tively-connected registeringwwheels, and chains with means thereon to actuate said registering wheels, of opposed tablets at the outer sides of said series of chains, provided with complemental digit-scales,to said chains, substantially as specified. 1 A

7. The combination with a series of opera tively connected registering-wheels and a register therefor and tangentiallyrmoving mechanism to'actuate said wheels, of a fixed stop at the lower end of said tangent mech; anism and an adjustable stop intermediate said fixed stop and register,'substantialiy" specified." p v 8. The combination with a series of operatively-connected registering-wheels tangeru tially-mo'ving mechanism to actuate said wheels and opposed tablets at the outer sides of said wheel-actuating mechanism, provided with complemental scales with numbers, of a fixed stop at the end of said wheel-actuating mechanism and an adjustable stop oversaid wheel-actuating mechanism, substantially as specified. Y

9. The combination with a series of opera tively-connected registering-wheels and tangentially moving actuating mechanism a fixed and an adjustablestop to said actuating mechanism, of a tablet to the case, sub stantially as specified.

10. The combination with a series of opera tively-conneeted registering-wheels, of endless chains, with engaging mechanism to said chains, tangent to said wheels, grooved across the chain-links, and spring-stops to said grooves, substantially as specified.

11. The combination with a series of operaregistering-wheels, of endless chains tangent to said wheels with means thereon to actuate said wheels, of mechanism to lift the chains into engagement with said registering-wheels and yielding stops to said chains, substantially as specified.

12 The combination with a series of operatively-connected numbering devices, of end, less and reversible and direct-moving chains, on, rollers, having means for engaging the numbering devices, and tangent to said numbering'devices, and a stop for the chain-mow ing mechanism, substantially as specified.

HENRY GOLDMAN, 

